diff options
Diffstat (limited to 'package/kernel/mac80211/patches/subsys/337-mac80211-minstrel_ht-clean-up-CCK-code.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/subsys/337-mac80211-minstrel_ht-clean-up-CCK-code.patch | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/package/kernel/mac80211/patches/subsys/337-mac80211-minstrel_ht-clean-up-CCK-code.patch b/package/kernel/mac80211/patches/subsys/337-mac80211-minstrel_ht-clean-up-CCK-code.patch deleted file mode 100644 index f667d2c94e..0000000000 --- a/package/kernel/mac80211/patches/subsys/337-mac80211-minstrel_ht-clean-up-CCK-code.patch +++ /dev/null @@ -1,166 +0,0 @@ -From: Felix Fietkau <nbd@nbd.name> -Date: Fri, 25 Dec 2020 16:22:52 +0100 -Subject: [PATCH] mac80211: minstrel_ht: clean up CCK code - -- move ack overhead out of rate duration table -- remove cck_supported, cck_supported_short - -Preparation for adding OFDM legacy rates support - -Signed-off-by: Felix Fietkau <nbd@nbd.name> ---- - ---- a/net/mac80211/rc80211_minstrel_ht.c -+++ b/net/mac80211/rc80211_minstrel_ht.c -@@ -136,20 +136,16 @@ - __VHT_GROUP(_streams, _sgi, _bw, \ - VHT_GROUP_SHIFT(_streams, _sgi, _bw)) - --#define CCK_DURATION(_bitrate, _short, _len) \ -+#define CCK_DURATION(_bitrate, _short) \ - (1000 * (10 /* SIFS */ + \ - (_short ? 72 + 24 : 144 + 48) + \ -- (8 * (_len + 4) * 10) / (_bitrate))) -- --#define CCK_ACK_DURATION(_bitrate, _short) \ -- (CCK_DURATION((_bitrate > 10 ? 20 : 10), false, 60) + \ -- CCK_DURATION(_bitrate, _short, AVG_PKT_SIZE)) -+ (8 * (AVG_PKT_SIZE + 4) * 10) / (_bitrate))) - - #define CCK_DURATION_LIST(_short, _s) \ -- CCK_ACK_DURATION(10, _short) >> _s, \ -- CCK_ACK_DURATION(20, _short) >> _s, \ -- CCK_ACK_DURATION(55, _short) >> _s, \ -- CCK_ACK_DURATION(110, _short) >> _s -+ CCK_DURATION(10, _short) >> _s, \ -+ CCK_DURATION(20, _short) >> _s, \ -+ CCK_DURATION(55, _short) >> _s, \ -+ CCK_DURATION(110, _short) >> _s - - #define __CCK_GROUP(_s) \ - [MINSTREL_CCK_GROUP] = { \ -@@ -163,7 +159,7 @@ - } - - #define CCK_GROUP_SHIFT \ -- GROUP_SHIFT(CCK_ACK_DURATION(10, false)) -+ GROUP_SHIFT(CCK_DURATION(10, false)) - - #define CCK_GROUP __CCK_GROUP(CCK_GROUP_SHIFT) - -@@ -349,15 +345,19 @@ int - minstrel_ht_get_tp_avg(struct minstrel_ht_sta *mi, int group, int rate, - int prob_avg) - { -- unsigned int nsecs = 0; -+ unsigned int nsecs = 0, overhead = mi->overhead; -+ unsigned int ampdu_len = 1; - - /* do not account throughput if sucess prob is below 10% */ - if (prob_avg < MINSTREL_FRAC(10, 100)) - return 0; - -- if (group != MINSTREL_CCK_GROUP) -- nsecs = 1000 * mi->overhead / minstrel_ht_avg_ampdu_len(mi); -+ if (group == MINSTREL_CCK_GROUP) -+ overhead = mi->overhead_legacy; -+ else -+ ampdu_len = minstrel_ht_avg_ampdu_len(mi); - -+ nsecs = 1000 * overhead / ampdu_len; - nsecs += minstrel_mcs_groups[group].duration[rate] << - minstrel_mcs_groups[group].shift; - -@@ -1031,7 +1031,10 @@ minstrel_calc_retransmit(struct minstrel - ctime += (t_slot * cw) >> 1; - cw = min((cw << 1) | 1, mp->cw_max); - -- if (index / MCS_GROUP_RATES != MINSTREL_CCK_GROUP) { -+ if (index / MCS_GROUP_RATES == MINSTREL_CCK_GROUP) { -+ overhead = mi->overhead_legacy; -+ overhead_rtscts = mi->overhead_legacy_rtscts; -+ } else { - overhead = mi->overhead; - overhead_rtscts = mi->overhead_rtscts; - } -@@ -1369,18 +1372,14 @@ minstrel_ht_update_cck(struct minstrel_p - if (!ieee80211_hw_check(mp->hw, SUPPORTS_HT_CCK_RATES)) - return; - -- mi->cck_supported = 0; -- mi->cck_supported_short = 0; - for (i = 0; i < 4; i++) { - if (!rate_supported(sta, sband->band, mp->cck_rates[i])) - continue; - -- mi->cck_supported |= BIT(i); -+ mi->supported[MINSTREL_CCK_GROUP] |= BIT(i); - if (sband->bitrates[i].flags & IEEE80211_RATE_SHORT_PREAMBLE) -- mi->cck_supported_short |= BIT(i); -+ mi->supported[MINSTREL_CCK_GROUP] |= BIT(i + 4); - } -- -- mi->supported[MINSTREL_CCK_GROUP] = mi->cck_supported; - } - - static void -@@ -1394,12 +1393,13 @@ minstrel_ht_update_caps(void *priv, stru - struct ieee80211_mcs_info *mcs = &sta->ht_cap.mcs; - u16 ht_cap = sta->ht_cap.cap; - struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap; -+ const struct ieee80211_rate *ctl_rate; -+ bool ldpc, erp; - int use_vht; - int n_supported = 0; - int ack_dur; - int stbc; - int i; -- bool ldpc; - - /* fall back to the old minstrel for legacy stations */ - if (!sta->ht_cap.ht_supported) -@@ -1423,6 +1423,14 @@ minstrel_ht_update_caps(void *priv, stru - mi->overhead += ack_dur; - mi->overhead_rtscts = mi->overhead + 2 * ack_dur; - -+ ctl_rate = &sband->bitrates[rate_lowest_index(sband, sta)]; -+ erp = ctl_rate->flags & IEEE80211_RATE_ERP_G; -+ ack_dur = ieee80211_frame_duration(sband->band, 10, -+ ctl_rate->bitrate, erp, 1, -+ ieee80211_chandef_get_shift(chandef)); -+ mi->overhead_legacy = ack_dur; -+ mi->overhead_legacy_rtscts = mi->overhead_legacy + 2 * ack_dur; -+ - mi->avg_ampdu_len = MINSTREL_FRAC(1, 1); - - /* When using MRR, sample more on the first attempt, without delay */ -@@ -1523,8 +1531,6 @@ minstrel_ht_update_caps(void *priv, stru - if (!n_supported) - goto use_legacy; - -- mi->supported[MINSTREL_CCK_GROUP] |= mi->cck_supported_short << 4; -- - /* create an initial rate table with the lowest supported rates */ - minstrel_ht_update_stats(mp, mi, true); - minstrel_ht_update_rates(mp, mi); ---- a/net/mac80211/rc80211_minstrel_ht.h -+++ b/net/mac80211/rc80211_minstrel_ht.h -@@ -77,6 +77,8 @@ struct minstrel_ht_sta { - /* overhead time in usec for each frame */ - unsigned int overhead; - unsigned int overhead_rtscts; -+ unsigned int overhead_legacy; -+ unsigned int overhead_legacy_rtscts; - - unsigned int total_packets_last; - unsigned int total_packets_cur; -@@ -97,9 +99,6 @@ struct minstrel_ht_sta { - /* current MCS group to be sampled */ - u8 sample_group; - -- u8 cck_supported; -- u8 cck_supported_short; -- - /* Bitfield of supported MCS rates of all groups */ - u16 supported[MINSTREL_GROUPS_NB]; - |